Constant edge rate output driver

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Slope control of leading or trailing edge of rectangular or...

Reexamination Certificate

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Details

C327S108000, C326S083000, C326S086000

Reexamination Certificate

active

06888388

ABSTRACT:
In a circuit and method for adjusting rise-and-fall-time changes in an output driver signal due to changes in temperature, process or voltage, the driver output voltage is monitored and current flow through a constant load resistor adjusted as the voltage changes. The current may be adjusted by controlling the gate-source voltage on a transistor. The gate voltage on the transistor may also be used to adjust the power supply to pre-drivers of the output driver.

REFERENCES:
patent: 6054874 (2000-04-01), Sculley et al.
patent: 6064224 (2000-05-01), Esch et al.
patent: 6111431 (2000-08-01), Estrada
patent: 6288563 (2001-09-01), Muljono et al.
patent: 6300806 (2001-10-01), Theus et al.
patent: 6380797 (2002-04-01), Macaluso et al.
patent: 6414525 (2002-07-01), Urakawa
patent: 6509756 (2003-01-01), Yu et al.

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